| 摘要 |
The present invention relates to an air lock shaft. The air lock shaft comprises: an inner shaft in which an air flow path is formed to be penetrated along the longitudinal direction; and an outer shaft in which the inner shaft is inserted to be penetrated along the inner circumferential surface and an electrode pancake is mounted along the outer circumferential surface, wherein the inner shaft has an air through hole, which is connected to the air flow path and opened toward the outer shaft; the outer shaft has an air hole, which is connected to the air through hole and opened toward the electrode pancake; and the electrode pancake is capable of floating from the outer shaft as air is discharged into the air hole through the air flow path. According to the present invention, the air lock shaft can be applied to a small-width electrode pancake by deleting a ball and roller for take-out and using air injection. |
